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Memory Map

The following is a memory map that was generated based on the MAME source code (.180).  This information is only as accurate as the MAME driver is.  If you see any errors, please let me know what that error is.
 
The Memory Area is related to where the information is from (CPU, Sound Board, etc..), and it may also reflect what it has in common with other hardware.
Chequered Flag (Konami, 1988)
Memory Area:bank1000_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096RAM
0x1000-0x17FF2048Read, Device Writek051316_1_ramrom_r, k051316_1, k051316_device, write
0x1800-0x1FFF2048RAM Device Write, Sharedpalette, palette_device, write, palette
Memory Area:chqflag_map
Address RangeLengthFunctionDescription
0x0000-0x0FFF4096RAM
0x1000-0x1FFF4096Devicebank1000, address_map_bank_device, amap8
0x2000-0x20078Device Read/Writek051960, k051960_device, k051937_r, k051937_w (/* Sprite control registers */)
0x2400-0x27FF1024Device Read/Writek051960, k051960_device, k051960_r, k051960_w (/* Sprite RAM */)
0x2800-0x2FFF2048Read, Device Writek051316_2_ramrom_r, k051316_2, k051316_device, write (/* 051316 zoom/rotation (chip 2) */)
0x30001Device Writesoundlatch, generic_latch_8_device, write (/* sound code # */)
0x30011Writechqflag_sh_irqtrigger_w (/* cause interrupt on audio CPU */)
0x30021Writechqflag_bankswitch_w (/* bankswitch control */)
0x30031Writechqflag_vreg_w (/* enable K051316 ROM reading */)
0x31001Read PortDSW1 (/* DIPSW #1 */)
0x32001Read PortIN1 (/* COINSW, STARTSW, test mode */)
0x0001Coin 1Active Low
0x0002Coin 2Active Low
0x0004Service 1Active Low
0x0008Start 1Active Low
0x0010UnknownActive Low
0x0040Chequered FlagActive High
0x0000Checkered FlagActive High
0x32011Read PortIN0 (/* DIPSW #3, SW 4 */)
0x007fUnknownActive Low
0x32031Read PortDSW2 (/* DIPSW #2 */)
0x0060DifficultyActive High
0x0060EasyActive High
0x0040NormalActive High
0x0020DifficultActive High
0x0000Very_DifficultActive High
0x0080Demo_SoundsActive High
0x0080OffActive High
0x0000OnActive High
0x33001Device Writewatchdog, watchdog_timer_device, reset_w (/* watchdog timer */)
0x3400-0x341F32Device Read/Writek051733, k051733_device, read, write (/* 051733 (protection) */)
0x3500-0x350F16Device Writek051316_1, k051316_device, ctrl_w (/* 051316 control registers (chip 1) */)
0x3600-0x360F16Device Writek051316_2, k051316_device, ctrl_w (/* 051316 control registers (chip 2) */)
0x37001Writeselect_analog_ctrl_w (/* select accelerator/wheel */)
0x37011Read PortIN2 (/* Brake + Shift + ? */)
0x0001Button 3Active Low
0x0002Button 2Active Low
0x000cUnknownActive Low
0x00f0UnknownActive High
0x37021Read/Writeanalog_read_r, select_analog_ctrl_w (/* accelerator/wheel */)
0x4000-0x7FFF16384ROM Bankrombank (/* banked ROM */)
0x8000-0xFFFF32768ROM, Regionmaincpu, 0x48000 (/* ROM */)
Memory Area:chqflag_sound_map
Address RangeLengthFunctionDescription
0x0000-0x7FFF32768ROM(/* ROM */)
0x8000-0x87FF2048RAM(/* RAM */)
0x90001Writek007232_bankswitch_w (/* 007232 bankswitch */)
0xA000-0xA00D14Device Read/Writek007232_1, k007232_device, read, write (/* 007232 (chip 1) */)
0xA01C1Writek007232_extvolume_w (/* extra volume, goes to the 007232 w/ A4 */)
0xB000-0xB00D14Device Read/Writek007232_2, k007232_device, read, write (/* 007232 (chip 2) */)
0xC000-0xC0012Device Read/Writeymsnd, ym2151_device, read, write (/* YM2151 */)
0xD0001Device Readsoundlatch, generic_latch_8_device, read
0xE0001Device Readsoundlatch2, generic_latch_8_device, read (/* engine sound volume */)
0xF0001Write NOP(/* ??? */)
 

ROM Map for this game

 
This is the ROM map for the game.  This should tell you what address the ROM is at, how big it is, what it's used for.   
Memory Area:audiocpu
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFF32768717e01CRC(966b8ba8) (Fluke: 6203)
0x0000-0x7FFF32768717e01CRC(966b8ba8) (Fluke: 6203)
Memory Area:k007232_1
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288717e03CRC(ebe73c22) (Fluke: 3F15)
0x0000-0x7FFFF524288717e03CRC(ebe73c22) (Fluke: 3F15)
Memory Area:k007232_2
Address RangeLengthLabel/LocationDescription
0x0000-0x7FFFF524288717e09CRC(d74e857d) (Fluke: 27C9)
0x0000-0x7FFFF524288717e09CRC(d74e857d) (Fluke: 27C9)
Memory Area:k051316_1
Address RangeLengthLabel/LocationDescription
0x0000-0x1FFFF131072717e06.n16CRC(1ec26c7a) (Fluke: 8C57)
0x0000-0x1FFFF131072717e06.n16CRC(1ec26c7a) (Fluke: 8C57)
Memory Area:k051316_2
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144717e07.l20CRC(b9a565a8) (Fluke: 12E0)
0x0000-0x3FFFF262144717e07.l20CRC(b9a565a8) (Fluke: 12E0)
0x40000-0x7FFFF262144717e08.l22CRC(b68a212e) (Fluke: 0DD0)
0x40000-0x7FFFF262144717e08.l22CRC(b68a212e) (Fluke: 0DD0)
0x80000-0xBFFFF262144717e11.n20CRC(ebb171ec) (Fluke: 3D46)
0x80000-0xBFFFF262144717e11.n20CRC(ebb171ec) (Fluke: 3D46)
0xC0000-0xFFFFF262144717e12.n22CRC(9269335d) (Fluke: B236)
0xC0000-0xFFFFF262144717e12.n22CRC(9269335d) (Fluke: B236)
Memory Area:maincpu
Address RangeLengthLabel/LocationDescription
0x0000-0x3FFFF262144717e10CRC(72fc56f6) (Fluke: 3C5F)
0x0000-0x3FFFF262144717e10CRC(72fc56f6) (Fluke: 3C5F)
0x40000-0x4FFFF65536717h02CRC(f5bd4e78) (Fluke: 0A97)
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